don't suggest Math methods inside a Math method call (IDEA-114408)

java/java-impl/src/com/intellij/psi/filters/getters/JavaMembersGetter.java

@@ -109,7 +109,7 @@ public class JavaMembersGetter extends MembersGetter {
         final PsiElement element = result.getElement();
         if (element instanceof PsiMethod) {
           final PsiClass aClass = ((PsiMethod)element).getContainingClass();
-          if (aClass != null) {
+          if (aClass != null && !"java.lang.Math".equals(aClass.getQualifiedName())) {
             return aClass;
           }
         }

java/java-tests/testData/codeInsight/completion/normal/NoMathTargetMethods.java

@@ -0,0 +1,6 @@
+public class Zoo {
+  void foo() {
+    Math.min(2, ac<caret>)
+  }
+
+}

java/java-tests/testSrc/com/intellij/codeInsight/completion/NormalCompletionTest.groovy

@@ -1383,4 +1383,6 @@ class Bar {
     assert ('valueOf' in myFixture.lookupElementStrings)
   }
 
+  public void testNoMathTargetMethods() { doAntiTest() }
+
 }