Only emit lint for local macros

src/test/ui/lint/semicolon-in-expressions-from-macros/auxiliary/foreign-crate.rs

@@ -0,0 +1,4 @@
+#[macro_export]
+macro_rules! my_macro {
+    () => { true; }
+}

src/test/ui/lint/semicolon-in-expressions-from-macros/foreign-crate.rs

@@ -0,0 +1,9 @@
+// aux-build:foreign-crate.rs
+// check-pass
+
+extern crate foreign_crate;
+
+// Test that we do not lint for a macro in a foreign crate
+fn main() {
+    let _ = foreign_crate::my_macro!();
+}