Emulate compiling a source file in the context of an existing library. Add --debugger-compile flag …

pkg/dev_compiler/lib/src/compiler/code_generator.dart

Index: pkg/dev_compiler/lib/src/compiler/code_generator.dart
diff --git a/pkg/dev_compiler/lib/src/compiler/code_generator.dart b/pkg/dev_compiler/lib/src/compiler/code_generator.dart
index 9cbc9ec0944963f19f5db971f50c5027fa1cbfb1..c673e0f91b2c825747328d52a2a8208d6e1939e8 100644
--- a/pkg/dev_compiler/lib/src/compiler/code_generator.dart
+++ b/pkg/dev_compiler/lib/src/compiler/code_generator.dart
@@ -625,7 +625,7 @@ class CodeGenerator extends GeneralizingAstVisitor
     if (node.type == null) {
       // TODO(jmesserly): if the type fails to resolve, should we generate code
       // that throws instead?
-      assert(options.unsafeForceCompile);
+      assert(options.unsafeForceCompile || options.replCompile);
       return js.call('dart.dynamic');
     }
     return _emitType(node.type);
@@ -3065,8 +3065,12 @@ class CodeGenerator extends GeneralizingAstVisitor
               [l, l, name, name, _visit(rhs)])
         ]);
       }
-      return js.call('dart.dput(#, #, #)',
-          [_visit(target), _emitMemberName(id.name), _visit(rhs)]);
+      return js.call('dart.#(#, #, #)', [
+        _emitDynamicOperationName('dput'),
+        _visit(target),
+        _emitMemberName(id.name),
+        _visit(rhs)
+      ]);
     }
 
     var accessor = id.staticElement;
@@ -3351,10 +3355,16 @@ class CodeGenerator extends GeneralizingAstVisitor
         return new JS.Call(jsTarget, args);
       }
       if (typeArgs != null) {
-        return js.call('dart.dgsend(#, #, #, #)',
-            [jsTarget, new JS.ArrayInitializer(typeArgs), memberName, args]);
+        return js.call('dart.#(#, #, #, #)', [
+          _emitDynamicOperationName('dgsend'),
+          jsTarget,
+          new JS.ArrayInitializer(typeArgs),
+          memberName,
+          args
+        ]);
       } else {
-        return js.call('dart.dsend(#, #, #)', [jsTarget, memberName, args]);
+        return js.call('dart.#(#, #, #)',
+            [_emitDynamicOperationName('dsend'), jsTarget, memberName, args]);
       }
     }
     if (_isObjectMemberCall(target, name)) {
@@ -4635,6 +4645,9 @@ class CodeGenerator extends GeneralizingAstVisitor
     return _emitFunctionTypeArguments(type, instantiated);
   }
 
+  JS.LiteralString _emitDynamicOperationName(String name) =>
+      js.string(options.replCompile ? '${name}Repl' : name);
+
   JS.Expression _emitAccessInternal(Expression target, Element member,
       String memberName, List<JS.Expression> typeArgs) {
     bool isStatic = member is ClassMemberElement && member.isStatic;
@@ -4649,7 +4662,8 @@ class CodeGenerator extends GeneralizingAstVisitor
               [l, l, name, l, name])
         ]);
       }
-      return js.call('dart.dload(#, #)', [_visit(target), name]);
+      return js.call('dart.#(#, #)',
+          [_emitDynamicOperationName('dload'), _visit(target), name]);
     }
 
     var jsTarget = _visit(target);