Move /src/test to /tests

tests/ui/annotate-snippet/auxiliary/multispan.rs

@@ -0,0 +1,37 @@
+// force-host
+// no-prefer-dynamic
+
+#![crate_type = "proc-macro"]
+#![feature(proc_macro_diagnostic, proc_macro_span, proc_macro_def_site)]
+
+extern crate proc_macro;
+
+use proc_macro::{TokenStream, TokenTree, Span, Diagnostic};
+
+fn parse(input: TokenStream) -> Result<(), Diagnostic> {
+    let mut hi_spans = vec![];
+    for tree in input {
+        if let TokenTree::Ident(ref ident) = tree {
+            if ident.to_string() == "hi" {
+                hi_spans.push(ident.span());
+            }
+        }
+    }
+
+    if !hi_spans.is_empty() {
+        return Err(Span::def_site()
+                       .error("hello to you, too!")
+                       .span_note(hi_spans, "found these 'hi's"));
+    }
+
+    Ok(())
+}
+
+#[proc_macro]
+pub fn hello(input: TokenStream) -> TokenStream {
+    if let Err(diag) = parse(input) {
+        diag.emit();
+    }
+
+    TokenStream::new()
+}