Remove nbsp

Fixes #50202

Change-Id: I67e2f02f49deaf1bd9dc1f32a35310704f4d921b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/264120
Reviewed-by: Lasse Nielsen <lrn@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>

pkg/analyzer/lib/src/error/dead_code_verifier.dart

@@ -646,7 +646,7 @@ class _CatchClausesVerifier {
       return;
     }
 
-    // An on-catch clause was found; verify that the exception type is not a
+    // An on-catch clause was found; verify that the exception type is not a
     // subtype of a previous on-catch exception type.
     for (var type in _visitedTypes) {
       if (_typeSystem.isSubtypeOf(currentType, type)) {

pkg/compiler/doc/sourcemap_extensions.md

@@ -14,15 +14,15 @@ share between dart2js and the deobfuscation tools:
 
 ```
 {
-  version: 3,
-  file: “main.dart.js”,
-  sources: ["a.dart", "b.dart"],
-  names: ["ClassA", "methodFoo"],
-  mappings: "AAAA,E;;ABCDE;"
-  x_org_dartlang_dart2js: {
-    minified_names: {...},
-    frames: [...]
-  }
+  version: 3,
+  file: “main.dart.js”,
+  sources: ["a.dart", "b.dart"],
+  names: ["ClassA", "methodFoo"],
+  mappings: "AAAA,E;;ABCDE;"
+  x_org_dartlang_dart2js: {
+    minified_names: {...},
+    frames: [...]
+  }
 }
 ```
 

sdk/lib/core/annotations.dart

@@ -50,7 +50,7 @@ part of dart.core;
 ///
 /// - the code imports a deprecated library.
 /// - the code exports a deprecated library, or any deprecated member of
-///   a non-deprecated library.
+///   a non-deprecated library.
 /// - the code refers statically to a deprecated declaration.
 /// - the code uses a member of an object with a statically known
 ///   type, where the member is deprecated on the interface of the static type.

tests/language/cascade/precedence_test.dart

@@ -61,12 +61,12 @@ class Box {
 //       expression (',' expression)*
 //     ;
 // assignableExpression:
-//       primary (arguments* assignableSelector)+
-//     | super assignableSelector
-//     | identifier
+//       primary (arguments* assignableSelector)+
+//     | super assignableSelector
+//     | identifier
 //     ;
 // conditionalExpression:
-//     logicalOrExpression ('?' expressionWithoutCascade ':' expressionWithoutCascade)?
+//     logicalOrExpression ('?' expressionWithoutCascade ':' expressionWithoutCascade)?
 //     ;
 // primary:
 //       thisExpression
@@ -77,11 +77,11 @@ class Box {
 //     | newExpression
 //     | constObjectExpression
 //     | '(' expression ')'
-//     ;
+//     ;
 // assignableSelector:
-//       '[' expression ']'
-//     | '.' identifier
-//     ;
+//       '[' expression ']'
+//     | '.' identifier
+//     ;
 //
 // In words:
 //  An assignableExpression is either a variable or something ending in

tests/language_2/cascade/precedence_test.dart

@@ -63,12 +63,12 @@ class Box {
 //       expression (',' expression)*
 //     ;
 // assignableExpression:
-//       primary (arguments* assignableSelector)+
-//     | super assignableSelector
-//     | identifier
+//       primary (arguments* assignableSelector)+
+//     | super assignableSelector
+//     | identifier
 //     ;
 // conditionalExpression:
-//     logicalOrExpression ('?' expressionWithoutCascade ':' expressionWithoutCascade)?
+//     logicalOrExpression ('?' expressionWithoutCascade ':' expressionWithoutCascade)?
 //     ;
 // primary:
 //       thisExpression
@@ -79,11 +79,11 @@ class Box {
 //     | newExpression
 //     | constObjectExpression
 //     | '(' expression ')'
-//     ;
+//     ;
 // assignableSelector:
-//       '[' expression ']'
-//     | '.' identifier
-//     ;
+//       '[' expression ']'
+//     | '.' identifier
+//     ;
 //
 // In words:
 //  An assignableExpression is either a variable or something ending in