tests extended to check all different calls to be case insensitive

Author: verhas

src/test/java/com/scriptbasic/testprograms/TestPrograms.java

@@ -95,6 +95,7 @@ public void testPrograms() throws Exception {
         codeTest("TestSub4.bas", "123\n123\n123\n123\n");
         codeTest("TestSub5.bas", "1111");
         codeTest("TestWhile1.bas", "89");
+        codeTest("MethodCaseInsensitive.bas", "variable g: 0.8");
 
         testSyntaxFail("ErrorTestSub1.bas");
         testSyntaxFail("NestedSub.bas");

src/test/resources/com/scriptbasic/testprograms/MethodCaseInsensitive.bas

@@ -0,0 +1,3 @@
+method sin from java.lang.Math is (double) use as sinus
+g = Sinus(1.0)
+print "variable g: ", LeFt(""&g,3)