Type assignment errors should be static type warnings, not compile-time errors

compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java

Index: compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
diff --git a/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java b/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
index 887907bd5f5a5300efc74a6ee497d33a3fc599a9..e2296d1762767934d1ac9d3230b46d038da5e9f6 100644
--- a/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
+++ b/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
@@ -17,6 +17,7 @@ import com.google.dart.compiler.DartCompilationError;
 import com.google.dart.compiler.DartCompilationPhase;
 import com.google.dart.compiler.DartCompilerContext;
 import com.google.dart.compiler.ErrorCode;
+import com.google.dart.compiler.ast.ASTVisitor;
 import com.google.dart.compiler.ast.DartArrayAccess;
 import com.google.dart.compiler.ast.DartArrayLiteral;
 import com.google.dart.compiler.ast.DartAssertion;
@@ -62,7 +63,6 @@ import com.google.dart.compiler.ast.DartNativeBlock;
 import com.google.dart.compiler.ast.DartNativeDirective;
 import com.google.dart.compiler.ast.DartNewExpression;
 import com.google.dart.compiler.ast.DartNode;
-import com.google.dart.compiler.ast.ASTVisitor;
 import com.google.dart.compiler.ast.DartNullLiteral;
 import com.google.dart.compiler.ast.DartParameter;
 import com.google.dart.compiler.ast.DartParameterizedTypeNode;
@@ -849,7 +849,7 @@ public class TypeAnalyzer implements DartCompilationPhase {
       }
       if (node.getInterfaces() != null) {
         for (DartTypeNode interfaceNode : node.getInterfaces()) {
-          validateTypeNode(interfaceNode, true);
+          validateTypeNode(interfaceNode, false);
         }
       }