glsl-1.00, glsl-1.30: Add tests for precision qualifiers on bvec2

tests/spec/glsl-1.00/compiler/precision-qualifiers/precision-bool-02.frag

+// [config]
+// expect_result: fail
+// glsl_version: 1.30
+// [end config]
+//
+// Precision qualifiers cannot be applied to boolean vectors.
+//
+// From section 4.5.2 of the GLSL 1.30 spec:
+//     Literal constants do not have precision qualifiers. Neither do Boolean
+//     variables.
+
+#version 130
+
+float f() {
+	lowp bvec2 v;
+	return 0.0;
+}

tests/spec/glsl-1.30/compiler/precision-qualifiers/precision-bool-02.frag

+// [config]
+// expect_result: fail
+// glsl_version: 1.30
+// [end config]
+//
+// Precision qualifiers cannot be applied to boolean vectors.
+//
+// From section 4.5.2 of the GLSL 1.30 spec:
+//     Literal constants do not have precision qualifiers. Neither do Boolean
+//     variables.
+
+#version 130
+
+float f() {
+	lowp bvec2 v;
+	return 0.0;
+}