Issue templates: Crash reports: Add itype:crash label

Author: Blaisorblade

.github/ISSUE_TEMPLATE/bug.md

@@ -15,5 +15,3 @@ println("hello, world")
 
 
 ## expectation
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.github/ISSUE_TEMPLATE/crash.md

@@ -2,7 +2,7 @@
 name: "\U0001F4A5 Crash report"
 about: Report a Dotty Compiler compiler crash
 title: ''
-labels: itype:bug
+labels: itype:bug, itype:crash
 assignees: ''
 
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.github/ISSUE_TEMPLATE/feature.md

@@ -2,12 +2,9 @@
 name: "\U0001F389 Suggest a feature"
 about: Please create a feature request here https://github.com/lampepfl/dotty-feature-requests
 title: ''
-labels:
+labels: ''
 assignees: ''
 
 ---
 
 Please create a feature request here: [lampepfl/dotty-feature-requests](https://github.com/lampepfl/dotty-feature-requests).
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.github/ISSUE_TEMPLATE/syntax-highlight.md

@@ -1,13 +1,10 @@
 ---
-name: "Syntax highlighting"
+name: Syntax highlighting
 about: Please create a syntax highlighting issue here https://github.com/scala/vscode-scala-syntax/issues
 title: ''
-labels:
+labels: ''
 assignees: ''
 
 ---
 
 Please create a syntax highlighting issue here: [scala/vscode-scala-syntax](https://github.com/scala/vscode-scala-syntax/issues).
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