Report warning on characters which can cause problems on Windows

As soon as we fix KT-17438, this warning will be turned into an error.

compiler/testData/diagnostics/tests/declarationChecks/nameWithDangerousCharacters.kt

@@ -0,0 +1,12 @@
+class <!DANGEROUS_CHARACTERS!>`A?B`<!>
+class <!DANGEROUS_CHARACTERS!>`A*B`<!>
+class <!DANGEROUS_CHARACTERS!>`A"B`<!>
+class <!DANGEROUS_CHARACTERS!>`A|B`<!>
+class <!DANGEROUS_CHARACTERS!>`A%B`<!>
+
+fun <!DANGEROUS_CHARACTERS!>`?*"|%`<!>(): Int {
+    val <!DANGEROUS_CHARACTERS!>`?`<!> = 0
+    return `?`
+}
+
+val <!DANGEROUS_CHARACTERS!>`"a"+"b"`<!> = "c"