Rollup merge of #67547 - GuillaumeGomez:cleanup-err-codes, r=Dylan-DPC

Cleanup err codes r? @Dylan-DPC
rust-lang · Dec 24, 2019 · d130e8d · d130e8d
2 parents 07effe1 + 256eec4
commit d130e8d
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diff --git a/src/librustc_error_codes/error_codes/E0124.md b/src/librustc_error_codes/error_codes/E0124.md
@@ -1,5 +1,6 @@
-You declared two fields of a struct with the same name. Erroneous code
-example:
+A struct was declared with two fields having the same name.
+
+Erroneous code example:
 
 ```compile_fail,E0124
 struct Foo {

diff --git a/src/librustc_error_codes/error_codes/E0128.md b/src/librustc_error_codes/error_codes/E0128.md
@@ -1,4 +1,5 @@
-Type parameter defaults can only use parameters that occur before them.
+A type parameter with default value is using forward declared identifier.
+
 Erroneous code example:
 
 ```compile_fail,E0128
@@ -7,11 +8,11 @@ struct Foo<T = U, U = ()> {
     field2: U,
 }
 // error: type parameters with a default cannot use forward declared
-// identifiers
+//        identifiers
 ```
 
-Since type parameters are evaluated in-order, you may be able to fix this issue
-by doing:
+Type parameter defaults can only use parameters that occur before them. Since
+type parameters are evaluated in-order, this issue could be fixed by doing:
 
 ```
 struct Foo<U = (), T = U> {