Fix for NPE when unresolved constructor used

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 4ec32da371a46757528fd9d4f5241e23b9b852a0..f349e5d7824852eede9768593716d8a119538eb3 100644
--- a/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
+++ b/compiler/java/com/google/dart/compiler/type/TypeAnalyzer.java
@@ -2144,7 +2144,7 @@ public class TypeAnalyzer implements DartCompilationPhase {
           DartExpression value = node.getValue();
           if (value != null) {
             Type valueType = value.getType();
-            if (TypeKind.of(valueType) != TypeKind.DYNAMIC) {
+            if (valueType != null && TypeKind.of(valueType) != TypeKind.DYNAMIC) {
               Type varType = Types.makeInferred(valueType);
               Elements.setType(element, varType);
               node.getName().setType(varType);