Small fixes

lib/src/codegen/js_codegen.dart

Index: lib/src/codegen/js_codegen.dart
diff --git a/lib/src/codegen/js_codegen.dart b/lib/src/codegen/js_codegen.dart
index cab929bd70d137c3efa53f87444d8ac90046572a..028a5152f56f0ae9ab30c4dd018c910a93fdb44d 100644
--- a/lib/src/codegen/js_codegen.dart
+++ b/lib/src/codegen/js_codegen.dart
@@ -1241,6 +1241,7 @@ class JSCodegenVisitor extends GeneralizingAstVisitor with ConversionVisitor {
 
   JS.Expression _emitPrefixIncrement(Token op, Expression expr) {
     var one = AstBuilder.integerLiteral(1);
+    one.staticType = rules.provider.intType;
     var increment = AstBuilder.binaryExpression(expr, op.lexeme[0], one);
     return _emitAssignment(expr, increment);
   }
@@ -1516,7 +1517,7 @@ class JSCodegenVisitor extends GeneralizingAstVisitor with ConversionVisitor {
     }
 
     var catchVarDecl = new JS.VariableDeclaration(_catchParameter);
-    var catchBody = _statement(_visitList(clauses));
+    var catchBody = new JS.Block(_visitList(clauses));

[vsm, 2015/03/10 13:34:47]

The js ast code asserts this is a block.

[Jennifer Messerly, 2015/03/10 15:04:08]

funny! we must've only hit the code path for >2 statements, which becomes a
block.
Interestingly this could've been caught by tools too (e.g. C# would catch it)
... catchBody was a Statement, but new Catch takes a Block, which is a subtype
of Statement ...

     _catchParameter = savedCatch;
 
     return new JS.Catch(catchVarDecl, catchBody);