rustc: Add non_camel_case_types lint check

src/test/compile-fail/lint-non-camel-case-class.rs

@@ -0,0 +1,11 @@
+#[forbid(non_camel_case_types)]
+class foo { //~ ERROR type, variant, or trait must be camel case
+    let bar: int;
+
+    new() {
+        self.bar = 0;
+    }
+}
+
+fn main() {
+}

src/test/compile-fail/lint-non-camel-case-enum.rs

@@ -0,0 +1,7 @@
+#[forbid(non_camel_case_types)]
+enum foo { //~ ERROR type, variant, or trait must be camel case
+    Bar
+}
+
+fn main() {
+}

src/test/compile-fail/lint-non-camel-case-struct.rs

@@ -0,0 +1,7 @@
+#[forbid(non_camel_case_types)]
+struct foo { //~ ERROR type, variant, or trait must be camel case
+    bar: int;
+}
+
+fn main() {
+}

src/test/compile-fail/lint-non-camel-case-type.rs

@@ -0,0 +1,5 @@
+#[forbid(non_camel_case_types)]
+type foo = int; //~ ERROR type, variant, or trait must be camel case
+
+fn main() {
+}

src/test/compile-fail/lint-non-camel-case-variant.rs

@@ -0,0 +1,7 @@
+#[forbid(non_camel_case_types)]
+enum Foo {
+    bar //~ ERROR type, variant, or trait must be camel case
+}
+
+fn main() {
+}