fix default getter template for boolean fields with meaningful starting 'is' (IDEA-148006)

java/java-impl/src/com/intellij/codeInsight/generation/defaultGetter.vm

@@ -4,11 +4,7 @@ static ##
 $field.type ##
 #set($name = $StringUtil.capitalizeWithJavaBeanConvention($StringUtil.sanitizeJavaIdentifier($helper.getPropertyName($field, $project))))
 #if ($field.boolean && $field.primitive)
-  #if ($StringUtil.startsWithIgnoreCase($name, 'is'))
-    #set($name = $StringUtil.decapitalize($name))
-  #else
-    is##
-#end
+  is##
 #else
   get##
 #end

java/java-tests/testSrc/com/intellij/codeInsight/GenerateGetterSetterTest.groovy

@@ -57,6 +57,7 @@ class Foo {
     myFixture.configureByText 'a.java', '''
 class Foo {
     boolean isStateForceMailField;
+    boolean isic;
 
     <caret>
 }
@@ -65,10 +66,15 @@ class Foo {
     myFixture.checkResult '''
 class Foo {
     boolean isStateForceMailField;
+    boolean isic;
 
     public boolean isStateForceMailField() {
         return isStateForceMailField;
     }
+
+    public boolean isIsic() {
+        return isic;
+    }
 }
 '''
   }