Use reflection in Ant task to invoke compiler

This will allow a more controlled management of the runtime that the compiler
is linked against. Incidentally this also allows Ant task to use any of
compiler arguments via <compilerarg> because Ant task is now just a facade for
the CLI compiler.

The test "wrongArguments" is deleted because the full compiler usage is now
printed out on a wrong <compilerarg>, and this will become inconvenient to
update with each change in compiler arguments

 #KT-5618 Fixed

compiler/cli/src/org/jetbrains/jet/cli/common/CLICompiler.java

@@ -58,6 +58,12 @@ public abstract class CLICompiler<A extends CommonCompilerArguments> {
         return exec(errStream, services, MessageRenderer.TAGS, args);
     }
 
+    @SuppressWarnings("UnusedDeclaration") // Used via reflection in KotlinCompilerBaseTask
+    @NotNull
+    public ExitCode execFullPathsInMessages(@NotNull PrintStream errStream, @NotNull String[] args) {
+        return exec(errStream, Services.EMPTY, MessageRenderer.PLAIN, args);
+    }
+
     @Nullable
     private A parseArguments(@NotNull PrintStream errStream, @NotNull MessageRenderer messageRenderer, @NotNull String[] args) {
         try {