Check for macros in built-in attributes that don't support them.

src/test/ui/invalid/invalid-crate-type-macro.rs

@@ -0,0 +1,7 @@
+#![crate_type = foo!()] //~ ERROR malformed `crate_type` attribute
+
+macro_rules! foo {
+    () => {"rlib"};
+}
+
+fn main() {}

src/test/ui/invalid/invalid-crate-type-macro.stderr

@@ -0,0 +1,8 @@
+error: malformed `crate_type` attribute input
+  --> $DIR/invalid-crate-type-macro.rs:1:1
+   |
+LL | #![crate_type = foo!()]
+   | ^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![crate_type = "bin|lib|..."]`
+
+error: aborting due to previous error
+

src/test/ui/modules/path-invalid-form.rs

@@ -0,0 +1,4 @@
+#[path = 123]  //~ ERROR malformed `path` attribute
+mod foo;
+
+fn main() {}

src/test/ui/modules/path-invalid-form.stderr

@@ -0,0 +1,8 @@
+error: malformed `path` attribute input
+  --> $DIR/path-invalid-form.rs:1:1
+   |
+LL | #[path = 123]
+   | ^^^^^^^^^^^^^ help: must be of the form: `#[path = "file"]`
+
+error: aborting due to previous error
+

src/test/ui/modules/path-macro.rs

@@ -0,0 +1,8 @@
+macro_rules! foo {
+    () => {"bar.rs"};
+}
+
+#[path = foo!()] //~ ERROR malformed `path` attribute
+mod abc;
+
+fn main() {}

src/test/ui/modules/path-macro.stderr

@@ -0,0 +1,8 @@
+error: malformed `path` attribute input
+  --> $DIR/path-macro.rs:5:1
+   |
+LL | #[path = foo!()]
+   | ^^^^^^^^^^^^^^^^ help: must be of the form: `#[path = "file"]`
+
+error: aborting due to previous error
+

src/test/ui/recursion_limit/invalid_digit_type.rs

@@ -0,0 +1,3 @@
+#![recursion_limit = 123] //~ ERROR malformed `recursion_limit` attribute
+
+fn main() {}

src/test/ui/recursion_limit/invalid_digit_type.stderr

@@ -0,0 +1,8 @@
+error: malformed `recursion_limit` attribute input
+  --> $DIR/invalid_digit_type.rs:1:1
+   |
+LL | #![recursion_limit = 123]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![recursion_limit = "N"]`
+
+error: aborting due to previous error
+

src/test/ui/recursion_limit/invalid_macro.rs

@@ -0,0 +1,7 @@
+#![recursion_limit = foo!()] //~ ERROR malformed `recursion_limit` attribute
+
+macro_rules! foo {
+    () => {"128"};
+}
+
+fn main() {}

src/test/ui/recursion_limit/invalid_macro.stderr

@@ -0,0 +1,8 @@
+error: malformed `recursion_limit` attribute input
+  --> $DIR/invalid_macro.rs:1:1
+   |
+LL | #![recursion_limit = foo!()]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![recursion_limit = "N"]`
+
+error: aborting due to previous error
+