IDEA-121756 Don't provide postfix completion options in java string literals

java/java-tests/testData/codeInsight/template/postfix/templates/cast/insideString.java

@@ -0,0 +1,5 @@
+public class Foo {
+    void m(Object o) {
+      Integer string = (Integer.parseInt("test.test.cast<caret>"));
+    }
+}

java/java-tests/testData/codeInsight/template/postfix/templates/cast/insideString_after.java

@@ -0,0 +1,5 @@
+public class Foo {
+    void m(Object o) {
+      Integer string = (Integer.parseInt("test.test.cast    <caret>"));
+    }
+}

java/java-tests/testData/codeInsight/template/postfix/templates/cast/singleArgument.java

@@ -0,0 +1,5 @@
+public class Foo {
+    void m(Object o) {
+      Integer string = (Integer.parseInt("test.test".cast<caret>));
+    }
+}

java/java-tests/testData/codeInsight/template/postfix/templates/cast/singleArgument_after.java

@@ -0,0 +1,5 @@
+public class Foo {
+    void m(Object o) {
+      Integer string = (Integer.parseInt((() "test.test")<caret>));
+    }
+}