Merge SwitchStatementWithSingleDefaultInspection into SwitchStatementWithTooFewBranches

Fixes IDEA-199499 Improve "Replace 'switch' with 'if'" action and make it a quick-fix for "Switch has too few branches"
Now default is not counted as branch in SwitchStatementWithTooFewBranches

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/switchDefault/afterBreakInIf.java

@@ -1,7 +1,7 @@
 // "Unwrap 'switch' statement" "true"
 class X {
   String test(char c) {
-      if(c == 'a') {
+      if (c == 'a') {
           System.out.println("foo");
       } else {
       }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/switchDefault/afterBreakInIf2.java

@@ -1,7 +1,7 @@
 // "Unwrap 'switch' statement" "true"
 class X {
   String test(char c) {
-      if(c == 'a') {
+      if (c == 'a') {
           System.out.println("foo");
       }
       System.out.println("oops");

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/switchDefault/afterBreakInIf3.java

@@ -1,10 +1,10 @@
 // "Unwrap 'switch' statement" "true"
 class X {
   String test(char c) {
-      if(c == 'a') {
+      if (c == 'a') {
           System.out.println("foo");
           return "";
-        }
+      }
       System.out.println("oops");
       return "";
   }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/switchDefault/afterBreakLast.java

@@ -1,8 +1,8 @@
 // "Unwrap 'switch' statement" "true"
 class X {
   String test(char c) {
-      if(c == 'a') {
+      if (c == 'a') {
           System.out.println("foo");
-        }
+      }
   }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/switchDefault/afterBreakOuterLoop.java

@@ -1,13 +1,14 @@
 // "Unwrap 'switch' statement" "true"
 class X {
   String test(char c) {
-    for(int i=0; i<10; i++)
-        if(c == 'a') {
+    for(int i=0; i<10; i++) {
+        if (c == 'a') {
             System.out.println("foo");
             continue;
-          }
+        }
         System.out.println("bar");
-      System.out.println("oops");
+    }
+    System.out.println("oops");
     return "";
   }
 }