Lower the precedence of the `as` operator.

Previously, the `as` operator was being parsed like a postfix expression, and
therefore being given the highest possible precedence. That caused it to bind
more tightly than prefix operators, which it should not. Instead, parse it
somewhat like a normal binary expression with some special-casing.

1 files changed, 5 insertions, 1 deletions

diff --git a/crates/ra_syntax/test_data/parser/inline/ok/0019_unary_expr.rs b/crates/ra_syntax/test_data/parser/inline/ok/0019_unary_expr.rs
index f1c3f7118..1080b48a1 100644
--- a/crates/ra_syntax/test_data/parser/inline/ok/0019_unary_expr.rs
+++ b/crates/ra_syntax/test_data/parser/inline/ok/0019_unary_expr.rs
@@ -1,5 +1,9 @@
 fn foo() {
-    **&1;
+    **&1 + 1;
     !!true;
     --1;
+    *&1 as u64;
+    *x(1);
+    &x[1];
+    -1..2;
 }