[test] Add some more known crashers

Author: hamishknight

validation-test/IDE/crashers/CodeCompletionCallbacksImpl-typecheckParsedType-571e84.swift

@@ -0,0 +1,3 @@
+// {"kind":"complete","original":"00fc7609","signature":"(anonymous namespace)::CodeCompletionCallbacksImpl::typecheckParsedType()","signatureAssert":"Assertion failed: (!type->hasTypeParameter() && \"no generic environment provided for type with type parameters\"), function mapTypeIntoEnvironment"}
+// RUN: not --crash %target-swift-ide-test -code-completion -batch-code-completion -skip-filecheck -code-completion-diagnostics -source-filename %s
+protocol a:Self#^^#

validation-test/IDE/crashers/CompletionLookup-foundDecl-b8e9b2.swift

@@ -0,0 +1,5 @@
+// {"kind":"complete","original":"0435fa64","signature":"swift::ide::CompletionLookup::foundDecl(swift::ValueDecl*, swift::DeclVisibilityKind, swift::DynamicLookupInfo)","signatureAssert":"Assertion failed: (!type->hasTypeParameter() && \"no generic environment provided for type with type parameters\"), function mapTypeIntoEnvironment"}
+// RUN: not --crash %target-swift-ide-test -code-completion -batch-code-completion -skip-filecheck -code-completion-diagnostics -source-filename %s
+extension Sequence where a == <#type#>[ {
+  #^^#
+}

validation-test/IDE/crashers/ConstraintGenerator-visitTapExpr-bdb91a.swift

@@ -0,0 +1,3 @@
+// {"kind":"complete","original":"bcb7c8c1","signature":"(anonymous namespace)::ConstraintGenerator::visitTapExpr(swift::TapExpr*)","signatureAssert":"Assertion failed: ((varDC == CS.DC || isa<AbstractClosureExpr>(varDC) || varDC->isChildContextOf(CS.DC)) && \"TapExpr var should be in the same DeclContext we're checking it in!\"), function visitTapExpr"}
+// RUN: not --crash %target-swift-ide-test -code-completion -batch-code-completion -skip-filecheck -code-completion-diagnostics -source-filename %s
+func a -> @b("\()." #^^#

validation-test/IDE/crashers/TypeResolution-resolveContextualType-1d60f3.swift

@@ -0,0 +1,4 @@
+// {"kind":"complete","original":"d73870ca","signature":"swift::TypeResolution::resolveContextualType(swift::TypeRepr*, swift::DeclContext*, swift::GenericSignature, swift::TypeResolutionOptions, llvm::function_ref<swift::Type (swift::UnboundGenericType*)>, llvm::function_ref<swift::Type (swift::ASTContext&, swift::PlaceholderTypeRepr*)>, llvm::function_ref<swift::Type (swift::Type, swift::PackElementTypeRepr*)>, llvm::function_ref<void (swift::GenericTypeDecl*, llvm::function_ref<swift::Type (swift::SubstitutableType*)>)>, swift::SILTypeResolutionContext*)","signatureAssert":"Assertion failed: (!type->hasTypeParameter() && \"no generic environment provided for type with type parameters\"), function mapTypeIntoEnvironment"}
+// RUN: not --crash %target-swift-ide-test -code-completion -batch-code-completion -skip-filecheck -code-completion-diagnostics -source-filename %s
+@ a(b
+#^^# struct c<b

validation-test/compiler_crashers/ConstraintGraph-computeConnectedComponents-37d275.swift

@@ -0,0 +1,3 @@
+// {"kind":"typecheck","original":"1d97bdbd","signature":"swift::constraints::ConstraintGraph::computeConnectedComponents(llvm::ArrayRef<swift::TypeVariableType*>)","signatureAssert":"Assertion failed: (component != components.end()), function operator()"}
+// RUN: not --crash %target-swift-frontend -typecheck %s
+let i =... a { " ? \(i Array* )" [

validation-test/compiler_crashers/ExprRewriter-visitPackExpansionExpr-e056c8.swift

@@ -0,0 +1,5 @@
+// {"kind":"typecheck","original":"ee11d1cb","signature":"(anonymous namespace)::ExprRewriter::visitPackExpansionExpr(swift::PackExpansionExpr*)","signatureAssert":"Assertion failed: (environment), function visitPackExpansionExpr"}
+// RUN: not --crash %target-swift-frontend -typecheck %s
+{
+  repeat [each $0]
+}

validation-test/compiler_crashers/Solution-getFunctionArgApplyInfo-2d64ed.swift

@@ -0,0 +1,6 @@
+// {"kind":"typecheck","signature":"swift::constraints::Solution::getFunctionArgApplyInfo(swift::constraints::ConstraintLocator*) const","signatureAssert":"Assertion failed: (Val && \"isa<> used on a null pointer\"), function doit"}
+// RUN: not --crash %target-swift-frontend -typecheck %s
+struct a {
+    callAsFunction( ())
+  {
+    a {