fixes for angular hello: String + and disable broken arg parsing

lib/runtime/dart/core.js

 var core;
 (function(exports) {
   'use strict';
   class Object {
     constructor() {
       let name = this.constructor.name;
       let init = this[name];
       let result = void 0;
       if (init)
         result = init.apply(this, arguments);
@@ skipping 920 matching lines @@
       if (source === void 0)
         source = null;
       if (offset === void 0)
         offset = -1;
       this.message = message;
       this.source = source;
       this.offset = offset;
     }
     toString() {
       let report = "FormatException";
-      if (dart.notNull(this.message != null) && dart.notNull("" != this.message)) {
+      if (this.message != null && "" != this.message) {
         report = `${report}: ${this.message}`;
       }
       let offset = this.offset;
       if (!(typeof this.source == 'string')) {
         if (offset != -1) {
-          report = String['+'](report, ` (at offset ${offset})`);
+          report = dart.notNull(report) + ` (at offset ${offset})`;
         }
         return report;
       }
-      if (offset != -1 && (dart.notNull(offset) < 0 || offset['>'](dart.dload(this.source, 'length')))) {
+      if (offset != -1 && (dart.notNull(offset) < 0 || int['>'](offset, dart.dload(this.source, 'length')))) {
         offset = -1;
       }
       if (offset == -1) {
         let source = dart.as(this.source, String);
         if (dart.notNull(source.length) > 78) {
-          source = String['+'](source.substring(0, 75), "...");
+          source = dart.notNull(source.substring(0, 75)) + "...";
         }
         return `${report}\n${source}`;
       }
       let lineNum = 1;
       let lineStart = 0;
       let lastWasCR = null;
       for (let i = 0; dart.notNull(i) < dart.notNull(offset); i = dart.notNull(i) + 1) {
         let char = dart.as(dart.dsend(this.source, 'codeUnitAt', i), int);
         if (char == 10) {
           if (lineStart != i || !dart.notNull(lastWasCR)) {
             lineNum = dart.notNull(lineNum) + 1;
           }
           lineStart = dart.notNull(i) + 1;
           lastWasCR = false;
         } else if (char == 13) {
           lineNum = dart.notNull(lineNum) + 1;
           lineStart = dart.notNull(i) + 1;
           lastWasCR = true;
         }
       }
       if (dart.notNull(lineNum) > 1) {
-        report = String['+'](report, ` (at line ${lineNum}, character ${dart.notNull(offset) - dart.notNull(lineStart) + 1})\n`);
+        report = dart.notNull(report) + ` (at line ${lineNum}, character ${dart.notNull(offset) - dart.notNull(lineStart) + 1})\n`;
       } else {
-        report = String['+'](report, ` (at character ${dart.notNull(offset) + 1})\n`);
+        report = dart.notNull(report) + ` (at character ${dart.notNull(offset) + 1})\n`;
       }
       let lineEnd = dart.as(dart.dload(this.source, 'length'), int);
-      for (let i = offset; i['<'](dart.dload(this.source, 'length')); i = dart.notNull(i) + 1) {
+      for (let i = offset; int['<'](i, dart.dload(this.source, 'length')); i = dart.notNull(i) + 1) {
         let char = dart.as(dart.dsend(this.source, 'codeUnitAt', i), int);
         if (char == 10 || char == 13) {
           lineEnd = i;
           break;
         }
       }
       let length = dart.notNull(lineEnd) - dart.notNull(lineStart);
       let start = lineStart;
       let end = lineEnd;
       let prefix = "";
@@ skipping 992 matching lines @@
       let fragment = opts && 'fragment' in opts ? opts.fragment : null;
       scheme = Uri[_makeScheme](scheme, Uri[_stringOrNullLength](scheme));
       userInfo = Uri[_makeUserInfo](userInfo, 0, Uri[_stringOrNullLength](userInfo));
       host = Uri[_makeHost](host, 0, Uri[_stringOrNullLength](host), false);
       if (query == "")
         query = null;
       query = Uri[_makeQuery](query, 0, Uri[_stringOrNullLength](query), queryParameters);
       fragment = Uri[_makeFragment](fragment, 0, Uri[_stringOrNullLength](fragment));
       port = Uri[_makePort](port, scheme);
       let isFile = scheme == "file";
-      if (dart.notNull(host == null) && (dart.notNull(userInfo.isNotEmpty) || port != null || dart.notNull(isFile))) {
+      if (host == null && (dart.notNull(userInfo.isNotEmpty) || port != null || dart.notNull(isFile))) {
         host = "";
       }
       let ensureLeadingSlash = host != null;
       path = Uri[_makePath](path, 0, Uri[_stringOrNullLength](path), pathSegments, ensureLeadingSlash, isFile);
       return new Uri[_internal$](scheme, userInfo, host, port, path, query, fragment);
     }
     http(authority, unencodedPath, queryParameters) {
       if (queryParameters === void 0)
         queryParameters = null;
       return Uri[_makeHttpUri]("http", authority, unencodedPath, queryParameters);
     }
     https(authority, unencodedPath, queryParameters) {
       if (queryParameters === void 0)
         queryParameters = null;
       return Uri[_makeHttpUri]("https", authority, unencodedPath, queryParameters);
     }
     static [_makeHttpUri](scheme, authority, unencodedPath, queryParameters) {
       let userInfo = "";
       let host = null;
       let port = null;
-      if (dart.notNull(authority != null) && dart.notNull(authority.isNotEmpty)) {
+      if (authority != null && dart.notNull(authority.isNotEmpty)) {
         let hostStart = 0;
         let hasUserInfo = false;
         for (let i = 0; dart.notNull(i) < dart.notNull(authority.length); i = dart.notNull(i) + 1) {
           if (authority.codeUnitAt(i) == Uri[_AT_SIGN]) {
             hasUserInfo = true;
             userInfo = authority.substring(0, i);
             hostStart = dart.notNull(i) + 1;
             break;
           }
         }
@@ skipping 61 matching lines @@
             throw new UnsupportedError("Illegal character in path");
           }
         }
       }, dart.functionType(dart.void, [String])));
     }
     static [_checkWindowsDriveLetter](charCode, argumentError) {
       if (dart.notNull(Uri[_UPPER_CASE_A]) <= dart.notNull(charCode) && dart.notNull(charCode) <= dart.notNull(Uri[_UPPER_CASE_Z]) || dart.notNull(Uri[_LOWER_CASE_A]) <= dart.notNull(charCode) && dart.notNull(charCode) <= dart.notNull(Uri[_LOWER_CASE_Z])) {
         return;
       }
       if (argumentError) {
-        throw new ArgumentError(String['+']("Illegal drive letter ", new String.fromCharCode(charCode)));
+        throw new ArgumentError("Illegal drive letter " + dart.notNull(new String.fromCharCode(charCode)));
       } else {
-        throw new UnsupportedError(String['+']("Illegal drive letter ", new String.fromCharCode(charCode)));
+        throw new UnsupportedError("Illegal drive letter " + dart.notNull(new String.fromCharCode(charCode)));
       }
     }
     static [_makeFileUri](path) {
       let sep = "/";
       if (path.startsWith(sep)) {
         return new Uri({scheme: "file", pathSegments: path.split(sep)});
       } else {
         return new Uri({pathSegments: path.split(sep)});
       }
     }
     static [_makeWindowsFileUrl](path) {
       if (path.startsWith("\\\\?\\")) {
         if (path.startsWith("\\\\?\\UNC\\")) {
           path = `\\${path.substring(7)}`;
         } else {
           path = path.substring(4);
           if (dart.notNull(path.length) < 3 || path.codeUnitAt(1) != Uri[_COLON] || path.codeUnitAt(2) != Uri[_BACKSLASH]) {
             throw new ArgumentError("Windows paths with \\\\?\\ prefix must be absolute");
           }
         }
       } else {
         path = path.replaceAll("/", "\\");
       }
       let sep = "\\";
-      if (dart.notNull(path.length) > 1 && dart.notNull(String.get(path, 1) == ":")) {
+      if (dart.notNull(path.length) > 1 && String.get(path, 1) == ":") {
         Uri[_checkWindowsDriveLetter](path.codeUnitAt(0), true);
         if (path.length == 2 || path.codeUnitAt(2) != Uri[_BACKSLASH]) {
           throw new ArgumentError("Windows paths with drive letter must be absolute");
         }
         let pathSegments = path.split(sep);
         Uri[_checkWindowsPathReservedCharacters](pathSegments, true, 1);
         return new Uri({scheme: "file", pathSegments: pathSegments});
       }
-      if (dart.notNull(path.length) > 0 && dart.notNull(String.get(path, 0) == sep)) {
-        if (dart.notNull(path.length) > 1 && dart.notNull(String.get(path, 1) == sep)) {
+      if (dart.notNull(path.length) > 0 && String.get(path, 0) == sep) {
+        if (dart.notNull(path.length) > 1 && String.get(path, 1) == sep) {
           let pathStart = path.indexOf("\\", 2);
           let hostPart = pathStart == -1 ? path.substring(2) : path.substring(2, pathStart);
           let pathPart = pathStart == -1 ? "" : path.substring(dart.notNull(pathStart) + 1);
           let pathSegments = pathPart.split(sep);
           Uri[_checkWindowsPathReservedCharacters](pathSegments, true);
           return new Uri({scheme: "file", host: hostPart, pathSegments: pathSegments});
         } else {
           let pathSegments = path.split(sep);
           Uri[_checkWindowsPathReservedCharacters](pathSegments, true);
           return new Uri({scheme: "file", pathSegments: pathSegments});
@@ skipping 36 matching lines @@
         }
       }
       if (host != null) {
         host = Uri[_makeHost](host, 0, host.length, false);
       } else if (this.hasAuthority) {
         host = this.host;
       } else if (dart.notNull(userInfo.isNotEmpty) || port != null || dart.notNull(isFile)) {
         host = "";
       }
       let ensureLeadingSlash = host != null;
-      if (dart.notNull(path != null) || dart.notNull(pathSegments != null)) {
+      if (path != null || dart.notNull(pathSegments != null)) {
         path = Uri[_makePath](path, 0, Uri[_stringOrNullLength](path), pathSegments, ensureLeadingSlash, isFile);
       } else {
         path = this.path;
         if ((dart.notNull(isFile) || dart.notNull(ensureLeadingSlash) && !dart.notNull(path.isEmpty)) && !dart.notNull(path.startsWith('/'))) {
           path = `/${path}`;
         }
       }
-      if (dart.notNull(query != null) || dart.notNull(queryParameters != null)) {
+      if (query != null || dart.notNull(queryParameters != null)) {
         query = Uri[_makeQuery](query, 0, Uri[_stringOrNullLength](query), queryParameters);
       } else if (this.hasQuery) {
         query = this.query;
       }
       if (fragment != null) {
         fragment = Uri[_makeFragment](fragment, 0, fragment.length);
       } else if (this.hasFragment) {
         fragment = this.fragment;
       }
       return new Uri[_internal$](scheme, userInfo, host, port, path, query, fragment);
@@ skipping 43 matching lines @@
     }
     static [_normalizeRegName](host, start, end) {
       let buffer = null;
       let sectionStart = start;
       let index = start;
       let isNormalized = true;
       while (dart.notNull(index) < dart.notNull(end)) {
         let char = host.codeUnitAt(index);
         if (char == Uri[_PERCENT]) {
           let replacement = Uri[_normalizeEscape](host, index, true);
-          if (dart.notNull(replacement == null) && dart.notNull(isNormalized)) {
+          if (replacement == null && dart.notNull(isNormalized)) {
             index = dart.notNull(index) + 3;
             continue;
           }
           if (buffer == null)
             buffer = new StringBuffer();
           let slice = host.substring(sectionStart, index);
           if (!dart.notNull(isNormalized))
             slice = slice.toLowerCase();
           buffer.write(slice);
           let sourceLength = 3;
@@ skipping 71 matching lines @@
       if (!dart.notNull(allLowercase))
         scheme = scheme.toLowerCase();
       return scheme;
     }
     static [_makeUserInfo](userInfo, start, end) {
       if (userInfo == null)
         return "";
       return Uri[_normalize](userInfo, start, end, dart.as(Uri[_userinfoTable], List$(int)));
     }
     static [_makePath](path, start, end, pathSegments, ensureLeadingSlash, isFile) {
-      if (dart.notNull(path == null) && dart.notNull(pathSegments == null))
+      if (path == null && dart.notNull(pathSegments == null))
         return isFile ? "/" : "";
-      if (dart.notNull(path != null) && dart.notNull(pathSegments != null)) {
+      if (path != null && dart.notNull(pathSegments != null)) {
         throw new ArgumentError('Both path and pathSegments specified');
       }
       let result = null;
       if (path != null) {
         result = Uri[_normalize](path, start, end, dart.as(Uri[_pathCharOrSlashTable], List$(int)));
       } else {
         result = pathSegments[exports.$map](dart.as(s => Uri[_uriEncode](dart.as(Uri[_pathCharTable], List$(int)), dart.as(s, String)), dart.functionType(dart.dynamic, [String])))[exports.$join]("/");
       }
       if (dart.dload(result, 'isEmpty')) {
         if (isFile)
           return "/";
       } else if ((dart.notNull(isFile) || dart.notNull(ensureLeadingSlash)) && dart.notNull(!dart.equals(dart.dsend(result, 'codeUnitAt', 0), Uri[_SLASH]))) {
         return `/${result}`;
       }
       return dart.as(result, String);
     }
     static [_makeQuery](query, start, end, queryParameters) {
-      if (dart.notNull(query == null) && dart.notNull(queryParameters == null))
+      if (query == null && dart.notNull(queryParameters == null))
         return null;
-      if (dart.notNull(query != null) && dart.notNull(queryParameters != null)) {
+      if (query != null && dart.notNull(queryParameters != null)) {
         throw new ArgumentError('Both query and queryParameters specified');
       }
       if (query != null)
         return Uri[_normalize](query, start, end, dart.as(Uri[_queryCharTable], List$(int)));
       let result = new StringBuffer();
       let first = true;
       queryParameters.forEach(dart.as((key, value) => {
         if (!dart.notNull(first)) {
           result.write("&");
         }
@@ skipping 139 matching lines @@
       }
       return buffer.toString();
     }
     static [_isSchemeCharacter](ch) {
       return dart.notNull(ch) < 128 && dart.notNull(!dart.equals(dart.dsend(Uri[_schemeTable][exports.$get](dart.notNull(ch) >> 4), '&', 1 << (dart.notNull(ch) & 15)), 0));
     }
     static [_isGeneralDelimiter](ch) {
       return dart.notNull(ch) <= dart.notNull(Uri[_RIGHT_BRACKET]) && dart.notNull(!dart.equals(dart.dsend(Uri[_genDelimitersTable][exports.$get](dart.notNull(ch) >> 4), '&', 1 << (dart.notNull(ch) & 15)), 0));
     }
     get isAbsolute() {
-      return dart.notNull(this.scheme != "") && dart.notNull(this.fragment == "");
+      return this.scheme != "" && this.fragment == "";
     }
     [_merge](base, reference) {
       if (base.isEmpty)
         return `/${reference}`;
       let backCount = 0;
       let refStart = 0;
       while (reference.startsWith("../", refStart)) {
         refStart = dart.notNull(refStart) + 3;
         backCount = dart.notNull(backCount) + 1;
       }
       let baseEnd = base.lastIndexOf('/');
       while (dart.notNull(baseEnd) > 0 && dart.notNull(backCount) > 0) {
         let newEnd = base.lastIndexOf('/', dart.notNull(baseEnd) - 1);
         if (dart.notNull(newEnd) < 0) {
           break;
         }
         let delta = dart.notNull(baseEnd) - dart.notNull(newEnd);
         if ((delta == 2 || delta == 3) && base.codeUnitAt(dart.notNull(newEnd) + 1) == Uri[_DOT] && (delta == 2 || base.codeUnitAt(dart.notNull(newEnd) + 2) == Uri[_DOT])) {
           break;
         }
         baseEnd = newEnd;
         backCount = dart.notNull(backCount) - 1;
       }
-      return String['+'](base.substring(0, dart.notNull(baseEnd) + 1), reference.substring(dart.notNull(refStart) - 3 * dart.notNull(backCount)));
+      return dart.notNull(base.substring(0, dart.notNull(baseEnd) + 1)) + dart.notNull(reference.substring(dart.notNull(refStart) - 3 * dart.notNull(backCount)));
     }
     [_hasDotSegments](path) {
       if (dart.notNull(path.length) > 0 && path.codeUnitAt(0) == Uri[_DOT])
         return true;
       let index = path.indexOf("/.");
       return index != -1;
     }
     [_removeDotSegments](path) {
       if (!dart.notNull(this[_hasDotSegments](path)))
         return path;
       let output = dart.as(new List.from([]), List$(String));
       let appendSlash = false;
       for (let segment of path.split("/")) {
         appendSlash = false;
         if (segment == "..") {
-          if (!dart.notNull(output[exports.$isEmpty]) && (output[exports.$length] != 1 || dart.notNull(output[exports.$get](0) != "")))
+          if (!dart.notNull(output[exports.$isEmpty]) && (output[exports.$length] != 1 || output[exports.$get](0) != ""))
             output[exports.$removeLast]();
           appendSlash = true;
         } else if ("." == segment) {
           appendSlash = true;
         } else {
           output[exports.$add](segment);
         }
       }
       if (appendSlash)
         output[exports.$add]("");
@@ skipping 60 matching lines @@
     get hasPort() {
       return this[_port] != null;
     }
     get hasQuery() {
       return this[_query] != null;
     }
     get hasFragment() {
       return this[_fragment] != null;
     }
     get origin() {
-      if (dart.notNull(this.scheme == "") || dart.notNull(this[_host] == null) || dart.notNull(this[_host] == "")) {
+      if (this.scheme == "" || this[_host] == null || this[_host] == "") {
         throw new StateError(`Cannot use origin without a scheme: ${this}`);
       }
-      if (dart.notNull(this.scheme != "http") && dart.notNull(this.scheme != "https")) {
+      if (this.scheme != "http" && this.scheme != "https") {
         throw new StateError(`Origin is only applicable schemes http and https: ${this}`);
       }
       if (this[_port] == null)
         return `${this.scheme}://${this[_host]}`;
       return `${this.scheme}://${this[_host]}:${this[_port]}`;
     }
     toFilePath(opts) {
       let windows = opts && 'windows' in opts ? opts.windows : null;
-      if (dart.notNull(this.scheme != "") && dart.notNull(this.scheme != "file")) {
+      if (this.scheme != "" && this.scheme != "file") {
         throw new UnsupportedError(`Cannot extract a file path from a ${this.scheme} URI`);
       }
       if (this.query != "") {
         throw new UnsupportedError("Cannot extract a file path from a URI with a query component");
       }
       if (this.fragment != "") {
         throw new UnsupportedError("Cannot extract a file path from a URI with a fragment component");
       }
       if (windows == null)
         windows = Uri[_isWindows];
@@ skipping 27 matching lines @@
         result.write("\\");
         result.write(this.host);
         result.write("\\");
       }
       result.writeAll(segments, "\\");
       if (dart.notNull(hasDriveLetter) && segments[exports.$length] == 1)
         result.write("\\");
       return result.toString();
     }
     get [_isPathAbsolute]() {
-      if (dart.notNull(this.path == null) || dart.notNull(this.path.isEmpty))
+      if (this.path == null || dart.notNull(this.path.isEmpty))
         return false;
       return this.path.startsWith('/');
     }
     [_writeAuthority](ss) {
       if (this[_userInfo].isNotEmpty) {
         ss.write(this[_userInfo]);
         ss.write("@");
       }
       if (this[_host] != null)
         ss.write(this[_host]);
       if (this[_port] != null) {
         ss.write(":");
         ss.write(this[_port]);
       }
     }
     toString() {
       let sb = new StringBuffer();
       Uri[_addIfNonEmpty](sb, this.scheme, this.scheme, ':');
-      if (dart.notNull(this.hasAuthority) || dart.notNull(this.path.startsWith("//")) || dart.notNull(this.scheme == "file")) {
+      if (dart.notNull(this.hasAuthority) || dart.notNull(this.path.startsWith("//")) || this.scheme == "file") {
         sb.write("//");
         this[_writeAuthority](sb);
       }
       sb.write(this.path);
       if (this[_query] != null) {
         sb.write("?");
         sb.write(this[_query]);
       }
       if (this[_fragment] != null) {
         sb.write("#");
         sb.write(this[_fragment]);
       }
       return sb.toString();
     }
     ['=='](other) {
       if (!dart.is(other, Uri))
         return false;
       let uri = dart.as(other, Uri);
-      return dart.notNull(this.scheme == uri.scheme) && this.hasAuthority == uri.hasAuthority && dart.notNull(this.userInfo == uri.userInfo) && dart.notNull(this.host == uri.host) && this.port == uri.port && dart.notNull(this.path == uri.path) && this.hasQuery == uri.hasQuery && dart.notNull(this.query == uri.query) && this.hasFragment == uri.hasFragment && dart.notNull(this.fragment == uri.fragment);
+      return this.scheme == uri.scheme && this.hasAuthority == uri.hasAuthority && this.userInfo == uri.userInfo && this.host == uri.host && this.port == uri.port && this.path == uri.path && this.hasQuery == uri.hasQuery && this.query == uri.query && this.hasFragment == uri.hasFragment && this.fragment == uri.fragment;
     }
     get hashCode() {
       // Function combine: (dynamic, dynamic) → int
       function combine(part, current) {
         return dart.as(dart.dsend(dart.dsend(dart.dsend(current, '*', 31), '+', part.hashCode), '&', 1073741823), int);
       }
       return combine(this.scheme, combine(this.userInfo, combine(this.host, combine(this.port, combine(this.path, combine(this.query, combine(this.fragment, 1)))))));
     }
     static [_addIfNonEmpty](sb, test, first, second) {
       if ("" != test) {
@@ skipping 375 matching lines @@
   exports.Symbol = Symbol;
   exports.Type = Type;
   exports.$forEach = $forEach;
   exports.$map = $map;
   exports.$toList = $toList;
   exports.$isEmpty = $isEmpty;
   exports.$removeLast = $removeLast;
   exports.$fold = $fold;
   exports.Uri = Uri;
 })(core || (core = {}));