Allow attributes before function arguments

This adds support for function calls of the form:

```rust
  (
    #[attr(...)] 1.2,
    #[attr_one(...)]
    #[attr_two(...)]
    1.5,
    ... etc ...
  )
```

Closes https://github.com/rust-analyzer/rust-analyzer/issues/2801

1 files changed, 9 insertions, 0 deletions

diff --git a/crates/ra_syntax/test_data/parser/inline/ok/0152_arg_list.rs b/crates/ra_syntax/test_data/parser/inline/ok/0152_arg_list.rs
new file mode 100644
index 000000000..a4009b392
--- /dev/null
+++ b/crates/ra_syntax/test_data/parser/inline/ok/0152_arg_list.rs
@@ -0,0 +1,9 @@
+fn assert_float(s: &str, n: f64) {}
+fn foo() {
+    assert_float(
+        "1.797693134862315708e+308L",
+        #[allow(clippy::excessive_precision)]
+        #[allow(dead_code)]
+        1.797_693_134_862_315_730_8e+308,
+    );
+}