EnterInStringLiteralHandler should use language-specific option for operation sign (fixes IDEA-114783), [CR-IC-5159]

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enter.java

@@ -0,0 +1,5 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, <caret>but a wise man knows himself to be a fool.";
+  }
+}

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enterOpSignOnNextLine.java

@@ -0,0 +1,5 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, <caret>but a wise man knows himself to be a fool.";
+  }
+}

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enterOpSignOnNextLine_after.java

@@ -0,0 +1,6 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, " 
+            + "<caret>but a wise man knows himself to be a fool.";
+  }
+}

java/java-tests/testData/codeInsight/editorActions/stringLiteral/enter_after.java

@@ -0,0 +1,6 @@
+public class Shakespeare {
+  void quote() {
+    String theQuote = "A fool thinks himself to be wise, " +
+            "<caret>but a wise man knows himself to be a fool.";
+  }
+}