Add tests for :? operator

tests/condition-01.glsl

@@ -0,0 +1,8 @@
+/* FAIL - :? condition is not bool scalar */
+
+uniform bvec4 a;
+
+void main()
+{
+  gl_Position = (a) ? vec4(1.0, 0.0, 0.0, 1.0) : vec4(0.0, 1.0, 0.0, 1.0);
+}

tests/condition-02.glsl

@@ -0,0 +1,8 @@
+/* FAIL - :? condition is not bool scalar */
+
+uniform float a;
+
+void main()
+{
+  gl_Position = (a) ? vec4(1.0, 0.0, 0.0, 1.0) : vec4(0.0, 1.0, 0.0, 1.0);
+}

tests/condition-03.glsl

@@ -0,0 +1,8 @@
+/* PASS */
+
+uniform bool a;
+
+void main()
+{
+  gl_Position = (a) ? vec4(1.0, 0.0, 0.0, 1.0) : vec4(0.0, 1.0, 0.0, 1.0);
+}

tests/condition-04.glsl

@@ -0,0 +1,8 @@
+/* FAIL - type of second two operands must match */
+
+uniform bool a;
+
+void main()
+{
+  gl_Position = (a) ? vec4(1.0, 0.0, 0.0, 1.0) : vec3(0.0, 1.0, 0.0);
+}

tests/condition-05.glsl

@@ -0,0 +1,13 @@
+#version 120
+/* PASS */
+
+uniform bool a;
+uniform int b;
+
+void main()
+{
+  float x;
+
+  x = (a) ? 2.0 : b;
+  gl_Position = vec4(x);
+}