[Completion] Support consume and copy for expr completion

These are part of SE-0366 and SE-0377 respectively.

Author: hamishknight

lib/IDE/CodeCompletion.cpp

@@ -905,6 +905,8 @@ void swift::ide::addExprKeywords(CodeCompletionResultSink &Sink,
   addKeyword(Sink, "try!", CodeCompletionKeywordKind::kw_try, "", flair);
   addKeyword(Sink, "try?", CodeCompletionKeywordKind::kw_try, "", flair);
   addKeyword(Sink, "await", CodeCompletionKeywordKind::None, "", flair);
+  addKeyword(Sink, "consume", CodeCompletionKeywordKind::None, "", flair);
+  addKeyword(Sink, "copy", CodeCompletionKeywordKind::None, "", flair);
 }
 
 void swift::ide::addSuperKeyword(CodeCompletionResultSink &Sink,

test/IDE/complete_keywords.swift

@@ -182,6 +182,9 @@
 // KW_DECL_STMT_TOPLEVEL-DAG: Keyword[try]/None: try{{; name=.+$}}
 // KW_DECL_STMT_TOPLEVEL-DAG: Keyword[try]/None: try!{{; name=.+$}}
 // KW_DECL_STMT_TOPLEVEL-DAG: Keyword[try]/None: try?{{; name=.+$}}
+// KW_DECL_STMT_TOPLEVEL-DAG: Keyword/None: await{{; name=.+$}}
+// KW_DECL_STMT_TOPLEVEL-DAG: Keyword/None: consume{{; name=.+$}}
+// KW_DECL_STMT_TOPLEVEL-DAG: Keyword/None: copy{{; name=.+$}}
 //
 // Literals
 //
@@ -250,6 +253,9 @@
 // KW_DECL_STMT-DAG: Keyword[try]/None: try{{; name=.+$}}
 // KW_DECL_STMT-DAG: Keyword[try]/None: try!{{; name=.+$}}
 // KW_DECL_STMT-DAG: Keyword[try]/None: try?{{; name=.+$}}
+// KW_DECL_STMT-DAG: Keyword/None: await{{; name=.+$}}
+// KW_DECL_STMT-DAG: Keyword/None: consume{{; name=.+$}}
+// KW_DECL_STMT-DAG: Keyword/None: copy{{; name=.+$}}
 //
 // Literals
 //
@@ -264,6 +270,9 @@
 // KW_EXPR-DAG: Keyword[try]/None: try{{; name=.+$}}
 // KW_EXPR-DAG: Keyword[try]/None: try!{{; name=.+$}}
 // KW_EXPR-DAG: Keyword[try]/None: try?{{; name=.+$}}
+// KW_EXPR-DAG: Keyword/None: await{{; name=.+$}}
+// KW_EXPR-DAG: Keyword/None: consume{{; name=.+$}}
+// KW_EXPR-DAG: Keyword/None: copy{{; name=.+$}}
 //
 // let and var
 //