Code, Changelog, ReleaseChecklist: Fix typos.

Refs: #4442

libevmasm/ControlFlowGraph.h

@@ -39,7 +39,7 @@ using KnownStatePointer = std::shared_ptr<KnownState>;
 
 /**
  * Identifier for a block, coincides with the tag number of an AssemblyItem but adds a special
- * ID for the inital block.
+ * ID for the initial block.
  */
 class BlockId
 {

libevmasm/LinkerObject.cpp

@@ -68,7 +68,7 @@ LinkerObject::matchLibrary(
 	if (it != _libraryAddresses.end())
 		return &it->second;
 	// If the user did not supply a fully qualified library name,
-	// try to match only the simple libary name
+	// try to match only the simple library name
 	size_t colon = _linkRefName.find(':');
 	if (colon == string::npos)
 		return nullptr;

libevmasm/RuleList.h

@@ -59,7 +59,7 @@ std::vector<SimplificationRule<Pattern>> simplificationRuleList(
 {
 	std::vector<SimplificationRule<Pattern>> rules;
 	rules += std::vector<SimplificationRule<Pattern>>{
-		// arithmetics on constants
+		// arithmetic on constants
 		{{Instruction::ADD, {A, B}}, [=]{ return A.d() + B.d(); }, false},
 		{{Instruction::MUL, {A, B}}, [=]{ return A.d() * B.d(); }, false},
 		{{Instruction::SUB, {A, B}}, [=]{ return A.d() - B.d(); }, false},

libevmasm/SimplificationRules.cpp

@@ -67,7 +67,7 @@ void Rules::addRule(SimplificationRule<Pattern> const& _rule)
 
 Rules::Rules()
 {
-	// Multiple occurences of one of these inside one rule must match the same equivalence class.
+	// Multiple occurrences of one of these inside one rule must match the same equivalence class.
 	// Constants.
 	Pattern A(Push);
 	Pattern B(Push);