### Description

`FROM test | eval x1 = pow(emp_no, 1), x2 = pow(x1, 1), x3 = pow(x2, 2)`

or

`FROM test | eval x1 = substring(ip1, 3), x2 = substring(x1, 2), x3 = substring(x2, 2)`

or

`FROM test | eval x1 = concat(ip1, ip2), x2 = concat(x1, "--"), x3 = concat(x2, "**")`

will fail with 

```
                "type": "verification_exception",
                "reason": "Found 1 problem\nline 1:65: Unknown column [x2], did you mean [x1]?"
```

Spawned from https://github.com/elastic/elasticsearch/issues/99472
x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/analysis/AnalyzerTests.java
var e = expectThrows(VerificationException.class, () -> analyze("""
            from test
            | enrich foo on bar
            """));
        assertThat(e.getMessage(), containsString("unresolved enrich policy [foo]"));
    }
    public void testNonExistingEnrichPolicyWithSimilarName() {
        var e = expectThrows(VerificationException.class, () -> analyze("""
            from test
            | enrich language on bar
            """));
        assertThat(e.getMessage(), containsString("unresolved enrich policy [language], did you mean [languages]"));
    }
    public void testEnrichPolicyMatchFieldName() {
        verifyUnsupported("from test | enrich languages on bar", "Unknown column [bar]");
        verifyUnsupported("from test | enrich languages on keywords", "Unknown column [keywords], did you mean [keyword]?");
        verifyUnsupported("from test | enrich languages on keyword with foo", "Enrich field [foo] not found in enrich policy [languages]");
        verifyUnsupported(
            "from test | enrich languages on keyword with language_namez",
            "Enrich field [language_namez] not found in enrich policy [languages], did you mean [language_name]"
        );
        verifyUnsupported(
            "from test | enrich languages on keyword with x = language_namez",
            "Enrich field [language_namez] not found in enrich policy [languages], did you mean [language_name]"
        );
    }
    public void testEnrichWrongMatchFieldType() {
        var e = expectThrows(VerificationException.class, () -> analyze("""
            from test
            | enrich languages on languages