diff --git a/test/expr/closure/closures.swift b/test/expr/closure/closures.swift
index d0245883e4f4b..457f78c65b313 100644
--- a/test/expr/closure/closures.swift
+++ b/test/expr/closure/closures.swift
@@ -210,7 +210,7 @@ class ExplicitSelfRequiredTest {
     doStuff {method() }  // expected-error {{call to method 'method' in closure requires explicit use of 'self' to make capture semantics explicit}} expected-note{{capture 'self' explicitly to enable implicit 'self' in this closure}} {{14-14= [self] in }} expected-note{{reference 'self.' explicitly}} {{14-14=self.}}
     doVoidStuff {_ = method() }  // expected-error {{call to method 'method' in closure requires explicit use of 'self' to make capture semantics explicit}} expected-note{{capture 'self' explicitly to enable implicit 'self' in this closure}} {{18-18= [self] in }} expected-note{{reference 'self.' explicitly}} {{22-22=self.}}
     doVoidStuff {() -> () in _ = method() }  // expected-error {{call to method 'method' in closure requires explicit use of 'self' to make capture semantics explicit}} expected-note{{capture 'self' explicitly to enable implicit 'self' in this closure}} {{18-18= [self]}} expected-note{{reference 'self.' explicitly}} {{34-34=self.}}
-    // With an empty capture list, insertion should should be suggested without a comma
+    // With an empty capture list, insertion should be suggested without a comma
     doStuff { [] in method() } // expected-error {{call to method 'method' in closure requires explicit use of 'self' to make capture semantics explicit}} expected-note{{capture 'self' explicitly to enable implicit 'self' in this closure}} {{16-16=self}} expected-note{{reference 'self.' explicitly}} {{21-21=self.}}
     doStuff { [  ] in method() } // expected-error {{call to method 'method' in closure requires explicit use of 'self' to make capture semantics explicit}} expected-note{{capture 'self' explicitly to enable implicit 'self' in this closure}} {{16-16=self}} expected-note{{reference 'self.' explicitly}} {{23-23=self.}}
     doStuff { [ /* This space intentionally left blank. */ ] in method() } // expected-error {{call to method 'method' in closure requires explicit use of 'self' to make capture semantics explicit}} expected-note{{capture 'self' explicitly to enable implicit 'self' in this closure}} {{16-16=self}} expected-note{{reference 'self.' explicitly}} {{65-65=self.}}
@@ -553,7 +553,7 @@ class SR3186 {
   }
 }
 
-// Apply the explicit 'self' rule even if it referrs to a capture, if
+// Apply the explicit 'self' rule even if it refers to a capture, if
 // we're inside a nested closure
 class SR14120 {
   func operation() {}
diff --git a/test/expr/closure/trailing.swift b/test/expr/closure/trailing.swift
index 083538d9f3f9f..bee6896ff7339 100644
--- a/test/expr/closure/trailing.swift
+++ b/test/expr/closure/trailing.swift
@@ -133,7 +133,7 @@ let someInt = 0
 let intArray = [someInt]
 limitXY(someInt, toGamut: intArray) {}  // expected-error{{extra trailing closure passed in call}}
 
-// <rdar://problem/23036383> QoI: Invalid trailing closures in stmt-conditions produce lowsy diagnostics
+// <rdar://problem/23036383> QoI: Invalid trailing closures in stmt-conditions produce lousy diagnostics
 func retBool(x: () -> Int) -> Bool {}
 func maybeInt(_: () -> Int) -> Int? {}
 func twoClosureArgs(_:()->Void, _:()->Void) -> Bool {}
diff --git a/test/expr/expressions.swift b/test/expr/expressions.swift
index d99a4d7c69b9c..695d2038bbdcf 100644
--- a/test/expr/expressions.swift
+++ b/test/expr/expressions.swift
@@ -909,7 +909,7 @@ do {
   x = (x,(3,y)).1.1
 }
 
-// SR-3439 subscript with pound exprssions.
+// SR-3439 subscript with pound expressions.
 Sr3439: do {
   class B {
     init() {}