Compute KernelClosureRepresentationInfo.variableIsUsedInTryOrSync

pkg/compiler/lib/src/ssa/locals_handler.dart

Index: pkg/compiler/lib/src/ssa/locals_handler.dart
diff --git a/pkg/compiler/lib/src/ssa/locals_handler.dart b/pkg/compiler/lib/src/ssa/locals_handler.dart
index d1c433b499243b95238e6e85dc6216e7e45a7a46..8c7f30d52541fb7da0fa6f63b0e71615a35c29ca 100644
--- a/pkg/compiler/lib/src/ssa/locals_handler.dart
+++ b/pkg/compiler/lib/src/ssa/locals_handler.dart
@@ -309,7 +309,7 @@ class LocalsHandler {
     return redirectionMapping.containsKey(local);
   }
 
-  bool isUsedInTryOrGenerator(Local local) {
+  bool _isUsedInTryOrGenerator(Local local) {
     return closureData.variableIsUsedInTryOrSync(local);
   }
 
@@ -359,7 +359,7 @@ class LocalsHandler {
       builder.add(lookup);
       return lookup..sourceInformation = sourceInformation;
     } else {
-      assert(isUsedInTryOrGenerator(local));
+      assert(_isUsedInTryOrGenerator(local));
       HLocalValue localValue = getLocal(local);
       HInstruction instruction = new HLocalGet(
           local, localValue, commonMasks.dynamicType, sourceInformation);
@@ -382,11 +382,7 @@ class LocalsHandler {
     // it could then have another name than the real parameter. And
     // the other one would not know it is just a copy of the real
     // parameter.
-    if (local is ParameterElement) {
-      assert(
-          builder.parameters.containsKey(local),
-          failedAt(local,
-              "No local value for parameter $local in ${builder.parameters}."));
+    if (builder.parameters.containsKey(local)) {
       return builder.parameters[local];
     }
 
@@ -425,7 +421,7 @@ class LocalsHandler {
       builder.add(new HFieldSet(redirect, box, value)
         ..sourceInformation = sourceInformation);
     } else {
-      assert(isUsedInTryOrGenerator(local));
+      assert(_isUsedInTryOrGenerator(local));
       HLocalValue localValue = getLocal(local);
       builder.add(new HLocalSet(local, localValue, value)
         ..sourceInformation = sourceInformation);