Fix internal exception when assignment happens in initializer

compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java

Index: compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java b/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
index 7aeb6f21d358b4dc7d27c7705c3221842fcd5559..b03409596d6b11bde2265845346821a25e0c0df8 100644
--- a/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
+++ b/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
@@ -2276,6 +2276,22 @@ public class TypeAnalyzerCompilerTest extends CompilerTestCase {
   }
 
   /**
+   * There was bug that when we analyze assignment in initializer, we don't have context.
+   */
+  public void test_typesPropagation_multiAssign_assignmentOutsideFunction() throws Exception {
+    analyzeLibrary(
+        "// filler filler filler filler filler filler filler filler filler filler",
+        "class A {",
+        "  A(p) {}",
+        "}",
+        "class B extends A {",
+        "  B(p) : super(p = 0) {}",
+        "}",
+        "");
+    // no exceptions
+  }
+
+  /**
    * When we can not identify type of assigned value we should keep "Dynamic" as type of variable.
    */
   public void test_typesPropagation_assign_newUnknownType() throws Exception {