Gardening: Fix spelling mistakes in */SourceKit

* about
* and
* answering
* because
* before
* cancellation
* clear
* comment
* complete
* corresponding
* cursor
* custom
* dependencies
* doesn't
* expression
* extension
* immediately
* implementation
* implicit
* innovation
* intentionally
* occasionally
* oldest
* parameter
* property
* response
* reuseastcontext
* snapshot
* sourcekit_swift_runtime_link_flags
* synchronously
* target
* that
* unlabeled
* usefulness
* work

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

tools/SourceKit/lib/SwiftLang/SwiftSourceDocInfo.cpp

@@ -2215,7 +2215,7 @@ public:
       //     print(x)
       Dcl = V->getCanonicalVarDecl();
 
-      // If we have a prioperty wrapper backing property or projected value, use
+      // If we have a property wrapper backing property or projected value, use
       // the wrapped property instead (i.e. if this is _foo or $foo, pretend
       // it's foo).
       if (auto *Wrapped = V->getOriginalWrappedProperty()) {
@@ -2283,7 +2283,7 @@ private:
     if (auto *V = dyn_cast<VarDecl>(D)) {
       D = V->getCanonicalVarDecl();
 
-      // If we have a prioperty wrapper backing property or projected value, use
+      // If we have a property wrapper backing property or projected value, use
       // the wrapped property for comparison instead (i.e. if this is _foo or
       // $foo, pretend it's foo).
       if (auto *Wrapped = V->getOriginalWrappedProperty()) {